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  <pre class="prettyprint lang-js">/*
 * This is code is also distributed under MIT license for use
 * with jQuery and prototype JavaScript libraries.
 */
<span id='Ext-DomQuery'>/**
</span> * @class Ext.DomQuery
Provides high performance selector/xpath processing by compiling queries into reusable functions. New pseudo classes and matchers can be plugged. It works on HTML and XML documents (if a content node is passed in).
&lt;p&gt;
DomQuery supports most of the &lt;a href=&quot;http://www.w3.org/TR/2005/WD-css3-selectors-20051215/#selectors&quot;&gt;CSS3 selectors spec&lt;/a&gt;, along with some custom selectors and basic XPath.&lt;/p&gt;

&lt;p&gt;
All selectors, attribute filters and pseudos below can be combined infinitely in any order. For example &quot;div.foo:nth-child(odd)[@foo=bar].bar:first&quot; would be a perfectly valid selector. Node filters are processed in the order in which they appear, which allows you to optimize your queries for your document structure.
&lt;/p&gt;
&lt;h4&gt;Element Selectors:&lt;/h4&gt;
&lt;ul class=&quot;list&quot;&gt;
    &lt;li&gt; &lt;b&gt;*&lt;/b&gt; any element&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E&lt;/b&gt; an element with the tag E&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E F&lt;/b&gt; All descendent elements of E that have the tag F&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E &gt; F&lt;/b&gt; or &lt;b&gt;E/F&lt;/b&gt; all direct children elements of E that have the tag F&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E + F&lt;/b&gt; all elements with the tag F that are immediately preceded by an element with the tag E&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E ~ F&lt;/b&gt; all elements with the tag F that are preceded by a sibling element with the tag E&lt;/li&gt;
&lt;/ul&gt;
&lt;h4&gt;Attribute Selectors:&lt;/h4&gt;
&lt;p&gt;The use of &amp;#64; and quotes are optional. For example, div[&amp;#64;foo='bar'] is also a valid attribute selector.&lt;/p&gt;
&lt;ul class=&quot;list&quot;&gt;
    &lt;li&gt; &lt;b&gt;E[foo]&lt;/b&gt; has an attribute &quot;foo&quot;&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E[foo=bar]&lt;/b&gt; has an attribute &quot;foo&quot; that equals &quot;bar&quot;&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E[foo^=bar]&lt;/b&gt; has an attribute &quot;foo&quot; that starts with &quot;bar&quot;&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E[foo$=bar]&lt;/b&gt; has an attribute &quot;foo&quot; that ends with &quot;bar&quot;&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E[foo*=bar]&lt;/b&gt; has an attribute &quot;foo&quot; that contains the substring &quot;bar&quot;&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E[foo%=2]&lt;/b&gt; has an attribute &quot;foo&quot; that is evenly divisible by 2&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E[foo!=bar]&lt;/b&gt; attribute &quot;foo&quot; does not equal &quot;bar&quot;&lt;/li&gt;
&lt;/ul&gt;
&lt;h4&gt;Pseudo Classes:&lt;/h4&gt;
&lt;ul class=&quot;list&quot;&gt;
    &lt;li&gt; &lt;b&gt;E:first-child&lt;/b&gt; E is the first child of its parent&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E:last-child&lt;/b&gt; E is the last child of its parent&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E:nth-child(&lt;i&gt;n&lt;/i&gt;)&lt;/b&gt; E is the &lt;i&gt;n&lt;/i&gt;th child of its parent (1 based as per the spec)&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E:nth-child(odd)&lt;/b&gt; E is an odd child of its parent&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E:nth-child(even)&lt;/b&gt; E is an even child of its parent&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E:only-child&lt;/b&gt; E is the only child of its parent&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E:checked&lt;/b&gt; E is an element that is has a checked attribute that is true (e.g. a radio or checkbox) &lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E:first&lt;/b&gt; the first E in the resultset&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E:last&lt;/b&gt; the last E in the resultset&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E:nth(&lt;i&gt;n&lt;/i&gt;)&lt;/b&gt; the &lt;i&gt;n&lt;/i&gt;th E in the resultset (1 based)&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E:odd&lt;/b&gt; shortcut for :nth-child(odd)&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E:even&lt;/b&gt; shortcut for :nth-child(even)&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E:contains(foo)&lt;/b&gt; E's innerHTML contains the substring &quot;foo&quot;&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E:nodeValue(foo)&lt;/b&gt; E contains a textNode with a nodeValue that equals &quot;foo&quot;&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E:not(S)&lt;/b&gt; an E element that does not match simple selector S&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E:has(S)&lt;/b&gt; an E element that has a descendent that matches simple selector S&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E:next(S)&lt;/b&gt; an E element whose next sibling matches simple selector S&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E:prev(S)&lt;/b&gt; an E element whose previous sibling matches simple selector S&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E:any(S1|S2|S2)&lt;/b&gt; an E element which matches any of the simple selectors S1, S2 or S3//\\&lt;/li&gt;
&lt;/ul&gt;
&lt;h4&gt;CSS Value Selectors:&lt;/h4&gt;
&lt;ul class=&quot;list&quot;&gt;
    &lt;li&gt; &lt;b&gt;E{display=none}&lt;/b&gt; css value &quot;display&quot; that equals &quot;none&quot;&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E{display^=none}&lt;/b&gt; css value &quot;display&quot; that starts with &quot;none&quot;&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E{display$=none}&lt;/b&gt; css value &quot;display&quot; that ends with &quot;none&quot;&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E{display*=none}&lt;/b&gt; css value &quot;display&quot; that contains the substring &quot;none&quot;&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E{display%=2}&lt;/b&gt; css value &quot;display&quot; that is evenly divisible by 2&lt;/li&gt;
    &lt;li&gt; &lt;b&gt;E{display!=none}&lt;/b&gt; css value &quot;display&quot; that does not equal &quot;none&quot;&lt;/li&gt;
&lt;/ul&gt;
 * @singleton
 */
Ext.DomQuery = function(){
    var cache = {}, 
    	simpleCache = {}, 
    	valueCache = {},
    	nonSpace = /\S/,
    	trimRe = /^\s+|\s+$/g,
    	tplRe = /\{(\d+)\}/g,
    	modeRe = /^(\s?[\/&gt;+~]\s?|\s|$)/,
    	tagTokenRe = /^(#)?([\w\-\*]+)/,
    	nthRe = /(\d*)n\+?(\d*)/, 
    	nthRe2 = /\D/,
    	// This is for IE MSXML which does not support expandos.
	// IE runs the same speed using setAttribute, however FF slows way down
	// and Safari completely fails so they need to continue to use expandos.
	isIE = window.ActiveXObject ? true : false,
	key = 30803;
    
    // this eval is stop the compressor from
    // renaming the variable to something shorter
    eval(&quot;var batch = 30803;&quot;);    	

    // Retrieve the child node from a particular
    // parent at the specified index.
    function child(parent, index){
        var i = 0,
            n = parent.firstChild;
        while(n){
            if(n.nodeType == 1){
               if(++i == index){
                   return n;
               }
            }
            n = n.nextSibling;
        }
        return null;
    }

    // retrieve the next element node
    function next(n){	
        while((n = n.nextSibling) &amp;&amp; n.nodeType != 1);
        return n;
    }

    // retrieve the previous element node 
    function prev(n){
        while((n = n.previousSibling) &amp;&amp; n.nodeType != 1);
        return n;
    }

    // Mark each child node with a nodeIndex skipping and
    // removing empty text nodes.
    function children(parent){
        var n = parent.firstChild,
	    nodeIndex = -1,
	    nextNode;
	while(n){
	    nextNode = n.nextSibling;
	    // clean worthless empty nodes.
	    if(n.nodeType == 3 &amp;&amp; !nonSpace.test(n.nodeValue)){
		parent.removeChild(n);
	    }else{
		// add an expando nodeIndex
		n.nodeIndex = ++nodeIndex;
	    }
	    n = nextNode;
	}
	return this;
    }


    // nodeSet - array of nodes
    // cls - CSS Class
    function byClassName(nodeSet, cls){
        if(!cls){
            return nodeSet;
        }
        var result = [], ri = -1;
        for(var i = 0, ci; ci = nodeSet[i]; i++){
            if((' '+ci.className+' ').indexOf(cls) != -1){
                result[++ri] = ci;
            }
        }
        return result;
    };

    function attrValue(n, attr){
	// if its an array, use the first node.
        if(!n.tagName &amp;&amp; typeof n.length != &quot;undefined&quot;){
            n = n[0];
        }
        if(!n){
            return null;
        }

        if(attr == &quot;for&quot;){
            return n.htmlFor;
        }
        if(attr == &quot;class&quot; || attr == &quot;className&quot;){
            return n.className;
        }
        return n.getAttribute(attr) || n[attr];

    };


    // ns - nodes
    // mode - false, /, &gt;, +, ~
    // tagName - defaults to &quot;*&quot;
    function getNodes(ns, mode, tagName){
        var result = [], ri = -1, cs;
        if(!ns){
            return result;
        }
        tagName = tagName || &quot;*&quot;;
	// convert to array
        if(typeof ns.getElementsByTagName != &quot;undefined&quot;){
            ns = [ns];
        }
	
	// no mode specified, grab all elements by tagName
	// at any depth
        if(!mode){
            for(var i = 0, ni; ni = ns[i]; i++){
                cs = ni.getElementsByTagName(tagName);
                for(var j = 0, ci; ci = cs[j]; j++){
                    result[++ri] = ci;
                }
            }
	// Direct Child mode (/ or &gt;)
	// E &gt; F or E/F all direct children elements of E that have the tag 	
        } else if(mode == &quot;/&quot; || mode == &quot;&gt;&quot;){
            var utag = tagName.toUpperCase();
            for(var i = 0, ni, cn; ni = ns[i]; i++){
                cn = ni.childNodes;
                for(var j = 0, cj; cj = cn[j]; j++){
                    if(cj.nodeName == utag || cj.nodeName == tagName  || tagName == '*'){
                        result[++ri] = cj;
                    }
                }
            }
	// Immediately Preceding mode (+)
	// E + F all elements with the tag F that are immediately preceded by an element with the tag E
        }else if(mode == &quot;+&quot;){
            var utag = tagName.toUpperCase();
            for(var i = 0, n; n = ns[i]; i++){
                while((n = n.nextSibling) &amp;&amp; n.nodeType != 1);
                if(n &amp;&amp; (n.nodeName == utag || n.nodeName == tagName || tagName == '*')){
                    result[++ri] = n;
                }
            }
	// Sibling mode (~)
	// E ~ F all elements with the tag F that are preceded by a sibling element with the tag E
        }else if(mode == &quot;~&quot;){
            var utag = tagName.toUpperCase();
            for(var i = 0, n; n = ns[i]; i++){
                while((n = n.nextSibling)){
                    if (n.nodeName == utag || n.nodeName == tagName || tagName == '*'){
                        result[++ri] = n;
                    }
                }
            }
        }
        return result;
    }

    function concat(a, b){
        if(b.slice){
            return a.concat(b);
        }
        for(var i = 0, l = b.length; i &lt; l; i++){
            a[a.length] = b[i];
        }
        return a;
    }

    function byTag(cs, tagName){
        if(cs.tagName || cs == document){
            cs = [cs];
        }
        if(!tagName){
            return cs;
        }
        var result = [], ri = -1;
        tagName = tagName.toLowerCase();
        for(var i = 0, ci; ci = cs[i]; i++){
            if(ci.nodeType == 1 &amp;&amp; ci.tagName.toLowerCase() == tagName){
                result[++ri] = ci;
            }
        }
        return result;
    }

    function byId(cs, id){
        if(cs.tagName || cs == document){
            cs = [cs];
        }
        if(!id){
            return cs;
        }
        var result = [], ri = -1;
        for(var i = 0, ci; ci = cs[i]; i++){
            if(ci &amp;&amp; ci.id == id){
                result[++ri] = ci;
                return result;
            }
        }
        return result;
    }

    // operators are =, !=, ^=, $=, *=, %=, |= and ~=
    // custom can be &quot;{&quot;
    function byAttribute(cs, attr, value, op, custom){
        var result = [], 
            ri = -1, 
            useGetStyle = custom == &quot;{&quot;,	    
            fn = Ext.DomQuery.operators[op],	    
            a,
            xml,
            hasXml;
            
        for(var i = 0, ci; ci = cs[i]; i++){
	    // skip non-element nodes.
            if(ci.nodeType != 1){
                continue;
            }
            // only need to do this for the first node
            if(!hasXml){
                xml = Ext.DomQuery.isXml(ci);
                hasXml = true;
            }
	    
            // we only need to change the property names if we're dealing with html nodes, not XML
            if(!xml){
                if(useGetStyle){
                    a = Ext.DomQuery.getStyle(ci, attr);
                } else if (attr == &quot;class&quot; || attr == &quot;className&quot;){
                    a = ci.className;
                } else if (attr == &quot;for&quot;){
                    a = ci.htmlFor;
                } else if (attr == &quot;href&quot;){
		    // getAttribute href bug
		    // http://www.glennjones.net/Post/809/getAttributehrefbug.htm
                    a = ci.getAttribute(&quot;href&quot;, 2);
                } else{
                    a = ci.getAttribute(attr);
                }
            }else{
                a = ci.getAttribute(attr);
            }
            if((fn &amp;&amp; fn(a, value)) || (!fn &amp;&amp; a)){
                result[++ri] = ci;
            }
        }
        return result;
    }

    function byPseudo(cs, name, value){
        return Ext.DomQuery.pseudos[name](cs, value);
    }

    function nodupIEXml(cs){
        var d = ++key, 
            r;
        cs[0].setAttribute(&quot;_nodup&quot;, d);
        r = [cs[0]];
        for(var i = 1, len = cs.length; i &lt; len; i++){
            var c = cs[i];
            if(!c.getAttribute(&quot;_nodup&quot;) != d){
                c.setAttribute(&quot;_nodup&quot;, d);
                r[r.length] = c;
            }
        }
        for(var i = 0, len = cs.length; i &lt; len; i++){
            cs[i].removeAttribute(&quot;_nodup&quot;);
        }
        return r;
    }

    function nodup(cs){
        if(!cs){
            return [];
        }
        var len = cs.length, c, i, r = cs, cj, ri = -1;
        if(!len || typeof cs.nodeType != &quot;undefined&quot; || len == 1){
            return cs;
        }
        if(isIE &amp;&amp; typeof cs[0].selectSingleNode != &quot;undefined&quot;){
            return nodupIEXml(cs);
        }
        var d = ++key;
        cs[0]._nodup = d;
        for(i = 1; c = cs[i]; i++){
            if(c._nodup != d){
                c._nodup = d;
            }else{
                r = [];
                for(var j = 0; j &lt; i; j++){
                    r[++ri] = cs[j];
                }
                for(j = i+1; cj = cs[j]; j++){
                    if(cj._nodup != d){
                        cj._nodup = d;
                        r[++ri] = cj;
                    }
                }
                return r;
            }
        }
        return r;
    }

    function quickDiffIEXml(c1, c2){
        var d = ++key,
            r = [];
        for(var i = 0, len = c1.length; i &lt; len; i++){
            c1[i].setAttribute(&quot;_qdiff&quot;, d);
        }        
        for(var i = 0, len = c2.length; i &lt; len; i++){
            if(c2[i].getAttribute(&quot;_qdiff&quot;) != d){
                r[r.length] = c2[i];
            }
        }
        for(var i = 0, len = c1.length; i &lt; len; i++){
           c1[i].removeAttribute(&quot;_qdiff&quot;);
        }
        return r;
    }

    function quickDiff(c1, c2){
        var len1 = c1.length,
        	d = ++key,
        	r = [];
        if(!len1){
            return c2;
        }
        if(isIE &amp;&amp; typeof c1[0].selectSingleNode != &quot;undefined&quot;){
            return quickDiffIEXml(c1, c2);
        }        
        for(var i = 0; i &lt; len1; i++){
            c1[i]._qdiff = d;
        }        
        for(var i = 0, len = c2.length; i &lt; len; i++){
            if(c2[i]._qdiff != d){
                r[r.length] = c2[i];
            }
        }
        return r;
    }

    function quickId(ns, mode, root, id){
        if(ns == root){
           var d = root.ownerDocument || root;
           return d.getElementById(id);
        }
        ns = getNodes(ns, mode, &quot;*&quot;);
        return byId(ns, id);
    }

    return {
        getStyle : function(el, name){
            return Ext.fly(el).getStyle(name);
        },
<span id='Ext-DomQuery-method-compile'>        /**
</span>         * Compiles a selector/xpath query into a reusable function. The returned function
         * takes one parameter &quot;root&quot; (optional), which is the context node from where the query should start.
         * @param {String} selector The selector/xpath query
         * @param {String} type (optional) Either &quot;select&quot; (the default) or &quot;simple&quot; for a simple selector match
         * @return {Function}
         */
        compile : function(path, type){
            type = type || &quot;select&quot;;

    	    // setup fn preamble
            var fn = [&quot;var f = function(root){\n var mode; ++batch; var n = root || document;\n&quot;],
        		mode,		
        		lastPath,
            	matchers = Ext.DomQuery.matchers,
            	matchersLn = matchers.length,
            	modeMatch,
            	// accept leading mode switch
            	lmode = path.match(modeRe);
            
            if(lmode &amp;&amp; lmode[1]){
                fn[fn.length] = 'mode=&quot;'+lmode[1].replace(trimRe, &quot;&quot;)+'&quot;;';
                path = path.replace(lmode[1], &quot;&quot;);
            }
	    
            // strip leading slashes
            while(path.substr(0, 1)==&quot;/&quot;){
                path = path.substr(1);
            }

            while(path &amp;&amp; lastPath != path){
                lastPath = path;
                var tokenMatch = path.match(tagTokenRe);
                if(type == &quot;select&quot;){
                    if(tokenMatch){
			// ID Selector
                        if(tokenMatch[1] == &quot;#&quot;){
                            fn[fn.length] = 'n = quickId(n, mode, root, &quot;'+tokenMatch[2]+'&quot;);';			
                        }else{
                            fn[fn.length] = 'n = getNodes(n, mode, &quot;'+tokenMatch[2]+'&quot;);';
                        }
                        path = path.replace(tokenMatch[0], &quot;&quot;);
                    }else if(path.substr(0, 1) != '@'){
                        fn[fn.length] = 'n = getNodes(n, mode, &quot;*&quot;);';
                    }
		// type of &quot;simple&quot;
                }else{
                    if(tokenMatch){
                        if(tokenMatch[1] == &quot;#&quot;){
                            fn[fn.length] = 'n = byId(n, &quot;'+tokenMatch[2]+'&quot;);';
                        }else{
                            fn[fn.length] = 'n = byTag(n, &quot;'+tokenMatch[2]+'&quot;);';
                        }
                        path = path.replace(tokenMatch[0], &quot;&quot;);
                    }
                }
                while(!(modeMatch = path.match(modeRe))){
                    var matched = false;
                    for(var j = 0; j &lt; matchersLn; j++){
                        var t = matchers[j];
                        var m = path.match(t.re);
                        if(m){
                            fn[fn.length] = t.select.replace(tplRe, function(x, i){
				return m[i];
			    });
                            path = path.replace(m[0], &quot;&quot;);
                            matched = true;
                            break;
                        }
                    }
                    // prevent infinite loop on bad selector
                    if(!matched){
                        throw 'Error parsing selector, parsing failed at &quot;' + path + '&quot;';
                    }
                }
                if(modeMatch[1]){
                    fn[fn.length] = 'mode=&quot;'+modeMatch[1].replace(trimRe, &quot;&quot;)+'&quot;;';
                    path = path.replace(modeMatch[1], &quot;&quot;);
                }
            }
	    // close fn out
            fn[fn.length] = &quot;return nodup(n);\n}&quot;;
	    
	    // eval fn and return it
            eval(fn.join(&quot;&quot;));
            return f;
        },

<span id='Ext-DomQuery-method-jsSelect'>        /**
</span>         * Selects a group of elements.
         * @param {String} selector The selector/xpath query (can be a comma separated list of selectors)
         * @param {Node/String} root (optional) The start of the query (defaults to document).
         * @return {Array} An Array of DOM elements which match the selector. If there are
         * no matches, and empty Array is returned.
         */
	jsSelect: function(path, root, type){
	    // set root to doc if not specified.
	    root = root || document;
	    
            if(typeof root == &quot;string&quot;){
                root = document.getElementById(root);
            }
            var paths = path.split(&quot;,&quot;),
            	results = [];
		
	    // loop over each selector
            for(var i = 0, len = paths.length; i &lt; len; i++){		
                var subPath = paths[i].replace(trimRe, &quot;&quot;);
		// compile and place in cache
                if(!cache[subPath]){
                    cache[subPath] = Ext.DomQuery.compile(subPath);
                    if(!cache[subPath]){
                        throw subPath + &quot; is not a valid selector&quot;;
                    }
                }
                var result = cache[subPath](root);
                if(result &amp;&amp; result != document){
                    results = results.concat(result);
                }
            }
	    
	    // if there were multiple selectors, make sure dups
	    // are eliminated
            if(paths.length &gt; 1){
                return nodup(results);
            }
            return results;
        },
	isXml: function(el) {
	    var docEl = (el ? el.ownerDocument || el : 0).documentElement;
	    return docEl ? docEl.nodeName !== &quot;HTML&quot; : false;
	},
        select : document.querySelectorAll ? function(path, root, type) {
	    root = root || document;
	    if (!Ext.DomQuery.isXml(root)) {
		try {
		    var cs = root.querySelectorAll(path);
		    return Ext.toArray(cs);
		}
		catch (ex) {}		
	    }	    
	    return Ext.DomQuery.jsSelect.call(this, path, root, type);
	} : function(path, root, type) {
	    return Ext.DomQuery.jsSelect.call(this, path, root, type);
	},

<span id='Ext-DomQuery-method-selectNode'>        /**
</span>         * Selects a single element.
         * @param {String} selector The selector/xpath query
         * @param {Node} root (optional) The start of the query (defaults to document).
         * @return {Element} The DOM element which matched the selector.
         */
        selectNode : function(path, root){
            return Ext.DomQuery.select(path, root)[0];
        },

<span id='Ext-DomQuery-method-selectValue'>        /**
</span>         * Selects the value of a node, optionally replacing null with the defaultValue.
         * @param {String} selector The selector/xpath query
         * @param {Node} root (optional) The start of the query (defaults to document).
         * @param {String} defaultValue (optional)
         * @return {String}
         */
        selectValue : function(path, root, defaultValue){
            path = path.replace(trimRe, &quot;&quot;);
            if(!valueCache[path]){
                valueCache[path] = Ext.DomQuery.compile(path, &quot;select&quot;);
            }
            var n = valueCache[path](root), v;
            n = n[0] ? n[0] : n;
            	    
	    // overcome a limitation of maximum textnode size
	    // Rumored to potentially crash IE6 but has not been confirmed.
	    // http://reference.sitepoint.com/javascript/Node/normalize
	    // https://developer.mozilla.org/En/DOM/Node.normalize	    
            if (typeof n.normalize == 'function') n.normalize();
            
            v = (n &amp;&amp; n.firstChild ? n.firstChild.nodeValue : null);
            return ((v === null||v === undefined||v==='') ? defaultValue : v);
        },

<span id='Ext-DomQuery-method-selectNumber'>        /**
</span>         * Selects the value of a node, parsing integers and floats. Returns the defaultValue, or 0 if none is specified.
         * @param {String} selector The selector/xpath query
         * @param {Node} root (optional) The start of the query (defaults to document).
         * @param {Number} defaultValue (optional)
         * @return {Number}
         */
        selectNumber : function(path, root, defaultValue){
            var v = Ext.DomQuery.selectValue(path, root, defaultValue || 0);
            return parseFloat(v);
        },

<span id='Ext-DomQuery-method-is'>        /**
</span>         * Returns true if the passed element(s) match the passed simple selector (e.g. div.some-class or span:first-child)
         * @param {String/HTMLElement/Array} el An element id, element or array of elements
         * @param {String} selector The simple selector to test
         * @return {Boolean}
         */
        is : function(el, ss){
            if(typeof el == &quot;string&quot;){
                el = document.getElementById(el);
            }
            var isArray = Ext.isArray(el),
            	result = Ext.DomQuery.filter(isArray ? el : [el], ss);
            return isArray ? (result.length == el.length) : (result.length &gt; 0);
        },

<span id='Ext-DomQuery-method-filter'>        /**
</span>         * Filters an array of elements to only include matches of a simple selector (e.g. div.some-class or span:first-child)
         * @param {Array} el An array of elements to filter
         * @param {String} selector The simple selector to test
         * @param {Boolean} nonMatches If true, it returns the elements that DON'T match
         * the selector instead of the ones that match
         * @return {Array} An Array of DOM elements which match the selector. If there are
         * no matches, and empty Array is returned.
         */
        filter : function(els, ss, nonMatches){
            ss = ss.replace(trimRe, &quot;&quot;);
            if(!simpleCache[ss]){
                simpleCache[ss] = Ext.DomQuery.compile(ss, &quot;simple&quot;);
            }
            var result = simpleCache[ss](els);
            return nonMatches ? quickDiff(result, els) : result;
        },

<span id='Ext-DomQuery-property-matchers'>        /**
</span>         * Collection of matching regular expressions and code snippets.
         * Each capture group within () will be replace the {} in the select
         * statement as specified by their index.
         */
        matchers : [{
                re: /^\.([\w\-]+)/,
                select: 'n = byClassName(n, &quot; {1} &quot;);'
            }, {
                re: /^\:([\w\-]+)(?:\(((?:[^\s&gt;\/]*|.*?))\))?/,
                select: 'n = byPseudo(n, &quot;{1}&quot;, &quot;{2}&quot;);'
            },{
                re: /^(?:([\[\{])(?:@)?([\w\-]+)\s?(?:(=|.=)\s?([&quot;']?)(.*?)\4)?[\]\}])/,
                select: 'n = byAttribute(n, &quot;{2}&quot;, &quot;{5}&quot;, &quot;{3}&quot;, &quot;{1}&quot;);'
            }, {
                re: /^#([\w\-]+)/,
                select: 'n = byId(n, &quot;{1}&quot;);'
            },{
                re: /^@([\w\-]+)/,
                select: 'return {firstChild:{nodeValue:attrValue(n, &quot;{1}&quot;)}};'
            }
        ],

<span id='Ext-DomQuery-property-operators'>        /**
</span>         * Collection of operator comparison functions. The default operators are =, !=, ^=, $=, *=, %=, |= and ~=.
         * New operators can be added as long as the match the format &lt;i&gt;c&lt;/i&gt;= where &lt;i&gt;c&lt;/i&gt; is any character other than space, &amp;gt; &amp;lt;.
         */
        operators : {
            &quot;=&quot; : function(a, v){
                return a == v;
            },
            &quot;!=&quot; : function(a, v){
                return a != v;
            },
            &quot;^=&quot; : function(a, v){
                return a &amp;&amp; a.substr(0, v.length) == v;
            },
            &quot;$=&quot; : function(a, v){
                return a &amp;&amp; a.substr(a.length-v.length) == v;
            },
            &quot;*=&quot; : function(a, v){
                return a &amp;&amp; a.indexOf(v) !== -1;
            },
            &quot;%=&quot; : function(a, v){
                return (a % v) == 0;
            },
            &quot;|=&quot; : function(a, v){
                return a &amp;&amp; (a == v || a.substr(0, v.length+1) == v+'-');
            },
            &quot;~=&quot; : function(a, v){
                return a &amp;&amp; (' '+a+' ').indexOf(' '+v+' ') != -1;
            }
        },

<span id='Ext-DomQuery-property-pseudos'>        /**
</span>         * &lt;p&gt;Object hash of &quot;pseudo class&quot; filter functions which are used when filtering selections. Each function is passed
         * two parameters:&lt;/p&gt;&lt;div class=&quot;mdetail-params&quot;&gt;&lt;ul&gt;
         * &lt;li&gt;&lt;b&gt;c&lt;/b&gt; : Array&lt;div class=&quot;sub-desc&quot;&gt;An Array of DOM elements to filter.&lt;/div&gt;&lt;/li&gt;
         * &lt;li&gt;&lt;b&gt;v&lt;/b&gt; : String&lt;div class=&quot;sub-desc&quot;&gt;The argument (if any) supplied in the selector.&lt;/div&gt;&lt;/li&gt;
         * &lt;/ul&gt;&lt;/div&gt;
         * &lt;p&gt;A filter function returns an Array of DOM elements which conform to the pseudo class.&lt;/p&gt;
         * &lt;p&gt;In addition to the provided pseudo classes listed above such as &lt;code&gt;first-child&lt;/code&gt; and &lt;code&gt;nth-child&lt;/code&gt;,
         * developers may add additional, custom psuedo class filters to select elements according to application-specific requirements.&lt;/p&gt;
         * &lt;p&gt;For example, to filter &lt;code&gt;&amp;lt;a&gt;&lt;/code&gt; elements to only return links to &lt;i&gt;external&lt;/i&gt; resources:&lt;/p&gt;
         * &lt;code&gt;&lt;pre&gt;
Ext.DomQuery.pseudos.external = function(c, v){
    var r = [], ri = -1;
    for(var i = 0, ci; ci = c[i]; i++){
//      Include in result set only if it's a link to an external resource
        if(ci.hostname != location.hostname){
            r[++ri] = ci;
        }
    }
    return r;
};&lt;/pre&gt;&lt;/code&gt;
         * Then external links could be gathered with the following statement:&lt;code&gt;&lt;pre&gt;
var externalLinks = Ext.select(&quot;a:external&quot;);
&lt;/code&gt;&lt;/pre&gt;
         */
        pseudos : {
            &quot;first-child&quot; : function(c){
                var r = [], ri = -1, n;
                for(var i = 0, ci; ci = n = c[i]; i++){
                    while((n = n.previousSibling) &amp;&amp; n.nodeType != 1);
                    if(!n){
                        r[++ri] = ci;
                    }
                }
                return r;
            },

            &quot;last-child&quot; : function(c){
                var r = [], ri = -1, n;
                for(var i = 0, ci; ci = n = c[i]; i++){
                    while((n = n.nextSibling) &amp;&amp; n.nodeType != 1);
                    if(!n){
                        r[++ri] = ci;
                    }
                }
                return r;
            },

            &quot;nth-child&quot; : function(c, a) {
                var r = [], ri = -1,
                	m = nthRe.exec(a == &quot;even&quot; &amp;&amp; &quot;2n&quot; || a == &quot;odd&quot; &amp;&amp; &quot;2n+1&quot; || !nthRe2.test(a) &amp;&amp; &quot;n+&quot; + a || a),
                	f = (m[1] || 1) - 0, l = m[2] - 0;
                for(var i = 0, n; n = c[i]; i++){
                    var pn = n.parentNode;
                    if (batch != pn._batch) {
                        var j = 0;
                        for(var cn = pn.firstChild; cn; cn = cn.nextSibling){
                            if(cn.nodeType == 1){
                               cn.nodeIndex = ++j;
                            }
                        }
                        pn._batch = batch;
                    }
                    if (f == 1) {
                        if (l == 0 || n.nodeIndex == l){
                            r[++ri] = n;
                        }
                    } else if ((n.nodeIndex + l) % f == 0){
                        r[++ri] = n;
                    }
                }

                return r;
            },

            &quot;only-child&quot; : function(c){
                var r = [], ri = -1;;
                for(var i = 0, ci; ci = c[i]; i++){
                    if(!prev(ci) &amp;&amp; !next(ci)){
                        r[++ri] = ci;
                    }
                }
                return r;
            },

            &quot;empty&quot; : function(c){
                var r = [], ri = -1;
                for(var i = 0, ci; ci = c[i]; i++){
                    var cns = ci.childNodes, j = 0, cn, empty = true;
                    while(cn = cns[j]){
                        ++j;
                        if(cn.nodeType == 1 || cn.nodeType == 3){
                            empty = false;
                            break;
                        }
                    }
                    if(empty){
                        r[++ri] = ci;
                    }
                }
                return r;
            },

            &quot;contains&quot; : function(c, v){
                var r = [], ri = -1;
                for(var i = 0, ci; ci = c[i]; i++){
                    if((ci.textContent||ci.innerText||'').indexOf(v) != -1){
                        r[++ri] = ci;
                    }
                }
                return r;
            },

            &quot;nodeValue&quot; : function(c, v){
                var r = [], ri = -1;
                for(var i = 0, ci; ci = c[i]; i++){
                    if(ci.firstChild &amp;&amp; ci.firstChild.nodeValue == v){
                        r[++ri] = ci;
                    }
                }
                return r;
            },

            &quot;checked&quot; : function(c){
                var r = [], ri = -1;
                for(var i = 0, ci; ci = c[i]; i++){
                    if(ci.checked == true){
                        r[++ri] = ci;
                    }
                }
                return r;
            },

            &quot;not&quot; : function(c, ss){
                return Ext.DomQuery.filter(c, ss, true);
            },

            &quot;any&quot; : function(c, selectors){
                var ss = selectors.split('|'),
                	r = [], ri = -1, s;
                for(var i = 0, ci; ci = c[i]; i++){
                    for(var j = 0; s = ss[j]; j++){
                        if(Ext.DomQuery.is(ci, s)){
                            r[++ri] = ci;
                            break;
                        }
                    }
                }
                return r;
            },

            &quot;odd&quot; : function(c){
                return this[&quot;nth-child&quot;](c, &quot;odd&quot;);
            },

            &quot;even&quot; : function(c){
                return this[&quot;nth-child&quot;](c, &quot;even&quot;);
            },

            &quot;nth&quot; : function(c, a){
                return c[a-1] || [];
            },

            &quot;first&quot; : function(c){
                return c[0] || [];
            },

            &quot;last&quot; : function(c){
                return c[c.length-1] || [];
            },

            &quot;has&quot; : function(c, ss){
                var s = Ext.DomQuery.select,
                	r = [], ri = -1;
                for(var i = 0, ci; ci = c[i]; i++){
                    if(s(ss, ci).length &gt; 0){
                        r[++ri] = ci;
                    }
                }
                return r;
            },

            &quot;next&quot; : function(c, ss){
                var is = Ext.DomQuery.is,
                	r = [], ri = -1;
                for(var i = 0, ci; ci = c[i]; i++){
                    var n = next(ci);
                    if(n &amp;&amp; is(n, ss)){
                        r[++ri] = ci;
                    }
                }
                return r;
            },

            &quot;prev&quot; : function(c, ss){
                var is = Ext.DomQuery.is,
                	r = [], ri = -1;
                for(var i = 0, ci; ci = c[i]; i++){
                    var n = prev(ci);
                    if(n &amp;&amp; is(n, ss)){
                        r[++ri] = ci;
                    }
                }
                return r;
            }
        }
    };
}();

<span id='Ext-method-query'>/**
</span> * Selects an array of DOM nodes by CSS/XPath selector. Shorthand of {@link Ext.DomQuery#select}
 * @param {String} path The selector/xpath query
 * @param {Node} root (optional) The start of the query (defaults to document).
 * @return {Array}
 * @member Ext
 * @method query
 */
Ext.query = Ext.DomQuery.select;
</pre>
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